Rename devices -> device

to match src/include/device

Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1960
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>

1 files changed, 304 insertions, 0 deletions

diff --git a/src/device/pnp_device.c b/src/device/pnp_device.c
new file mode 100644
index 0000000000..19b492db78
--- /dev/null
+++ b/src/device/pnp_device.c
@@ -0,0 +1,304 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2004 Linux Networx
+ * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
+ * Copyright (C) 2004 Li-Ta Lo <ollie@lanl.gov>
+ * Copyright (C) 2005 Tyan
+ * (Written by Yinghai Lu <yhlu@tyan.com> for Tyan)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pnp.h>
+
+/* PNP fundamental operations */
+
+void pnp_write_config(device_t dev, u8 reg, u8 value)
+{
+	outb(reg, dev->path.pnp.port);
+	outb(value, dev->path.pnp.port + 1);
+}
+
+u8 pnp_read_config(device_t dev, u8 reg)
+{
+	outb(reg, dev->path.pnp.port);
+	return inb(dev->path.pnp.port + 1);
+}
+
+void pnp_set_logical_device(device_t dev)
+{
+	pnp_write_config(dev, 0x07, dev->path.pnp.device & 0xff);
+}
+
+void pnp_set_enable(device_t dev, int enable)
+{
+	u8 tmp, bitpos;
+
+	tmp = pnp_read_config(dev, 0x30);
+
+	/* Handle virtual devices, which share the same LDN register. */
+	bitpos = (dev->path.pnp.device >> 8) & 0x7;
+
+	if (enable)
+		tmp |= (1 << bitpos);
+	else
+		tmp &= ~(1 << bitpos);
+
+	pnp_write_config(dev, 0x30, tmp);
+}
+
+int pnp_read_enable(device_t dev)
+{
+	u8 tmp, bitpos;
+
+	tmp = pnp_read_config(dev, 0x30);
+
+	/* Handle virtual devices, which share the same LDN register. */
+	bitpos = (dev->path.pnp.device >> 8) & 0x7;
+
+	return !!(tmp & (1 << bitpos));
+}
+
+void pnp_set_iobase(device_t dev, u8 index, u16 iobase)
+{
+	/* Index == 0x60 or 0x62. */
+	pnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
+	pnp_write_config(dev, index + 1, iobase & 0xff);
+}
+
+void pnp_set_irq(device_t dev, u8 index, u8 irq)
+{
+	/* Index == 0x70 or 0x72. */
+	pnp_write_config(dev, index, irq);
+}
+
+void pnp_set_drq(device_t dev, u8 index, u8 drq)
+{
+	/* Index == 0x74. */
+	pnp_write_config(dev, index, drq & 0xff);
+}
+
+/* PNP device operations */
+
+void pnp_read_resources(device_t dev)
+{
+	return;
+}
+
+static void pnp_set_resource(device_t dev, struct resource *resource)
+{
+	if (!(resource->flags & IORESOURCE_ASSIGNED)) {
+		printk(BIOS_ERR, "ERROR: %s %02lx %s size: 0x%010llx "
+		       "not assigned\n", dev_path(dev), resource->index,
+		       resource_type(resource), resource->size);
+		return;
+	}
+
+	/* Now store the resource. */
+	if (resource->flags & IORESOURCE_IO) {
+		pnp_set_iobase(dev, resource->index, resource->base);
+	} else if (resource->flags & IORESOURCE_DRQ) {
+		pnp_set_drq(dev, resource->index, resource->base);
+	} else if (resource->flags & IORESOURCE_IRQ) {
+		pnp_set_irq(dev, resource->index, resource->base);
+	} else {
+		printk(BIOS_ERR, "ERROR: %s %02lx unknown resource type\n",
+		       dev_path(dev), resource->index);
+		return;
+	}
+	resource->flags |= IORESOURCE_STORED;
+
+	report_resource_stored(dev, resource, "");
+}
+
+void pnp_set_resources(device_t dev)
+{
+	struct resource *res;
+
+	/* Select the logical device (LDN). */
+	pnp_set_logical_device(dev);
+
+	/* Paranoia says I should disable the device here... */
+	for (res = dev->resource_list; res; res = res->next)
+		pnp_set_resource(dev, res);
+}
+
+void pnp_enable_resources(device_t dev)
+{
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 1);
+}
+
+void pnp_enable(device_t dev)
+{
+	if (!dev->enabled) {
+		pnp_set_logical_device(dev);
+		pnp_set_enable(dev, 0);
+	}
+}
+
+struct device_operations pnp_ops = {
+	.read_resources   = pnp_read_resources,
+	.set_resources    = pnp_set_resources,
+	.enable_resources = pnp_enable_resources,
+	.enable           = pnp_enable,
+};
+
+/* PNP chip operations */
+
+static void pnp_get_ioresource(device_t dev, u8 index, struct io_info *info)
+{
+	struct resource *resource;
+	unsigned moving, gran, step;
+
+	if (!info->mask) {
+		printk(BIOS_ERR, "ERROR: device %s index %d has no mask.\n",
+				dev_path(dev), index);
+		return;
+	}
+
+	resource = new_resource(dev, index);
+
+	/* Initilize the resource. */
+	resource->limit = 0xffff;
+	resource->flags |= IORESOURCE_IO;
+
+	/* Get the resource size... */
+
+	moving = info->mask;
+	gran = 15;
+	step = 1 << gran;
+
+	/* Find the first bit that moves. */
+	while ((moving & step) == 0) {
+		gran--;
+		step >>= 1;
+	}
+
+	/* Now find the first bit that does not move. */
+	while ((moving & step) != 0) {
+		gran--;
+		step >>= 1;
+	}
+
+	/*
+	 * Of the moving bits the last bit in the first group,
+	 * tells us the size of this resource.
+	 */
+	if ((moving & step) == 0) {
+		gran++;
+		step <<= 1;
+	}
+
+	/* Set the resource size and alignment. */
+	resource->gran  = gran;
+	resource->align = gran;
+	resource->limit = info->mask | (step - 1);
+	resource->size  = 1 << gran;
+}
+
+static void get_resources(device_t dev, struct pnp_info *info)
+{
+	struct resource *resource;
+
+	if (info->flags & PNP_IO0)
+		pnp_get_ioresource(dev, PNP_IDX_IO0, &info->io0);
+	if (info->flags & PNP_IO1)
+		pnp_get_ioresource(dev, PNP_IDX_IO1, &info->io1);
+	if (info->flags & PNP_IO2)
+		pnp_get_ioresource(dev, PNP_IDX_IO2, &info->io2);
+	if (info->flags & PNP_IO3)
+		pnp_get_ioresource(dev, PNP_IDX_IO3, &info->io3);
+
+	if (info->flags & PNP_IRQ0) {
+		resource = new_resource(dev, PNP_IDX_IRQ0);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_IRQ;
+	}
+	if (info->flags & PNP_IRQ1) {
+		resource = new_resource(dev, PNP_IDX_IRQ1);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_IRQ;
+	}
+
+	if (info->flags & PNP_DRQ0) {
+		resource = new_resource(dev, PNP_IDX_DRQ0);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_DRQ;
+	}
+	if (info->flags & PNP_DRQ1) {
+		resource = new_resource(dev, PNP_IDX_DRQ1);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_DRQ;
+	}
+
+	/*
+	 * These are not IRQs, but set the flag to have the
+	 * resource allocator do the right thing.
+	 */
+	if (info->flags & PNP_EN) {
+		resource = new_resource(dev, PNP_IDX_EN);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_IRQ;
+	}
+	if (info->flags & PNP_MSC0) {
+		resource = new_resource(dev, PNP_IDX_MSC0);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_IRQ;
+	}
+	if (info->flags & PNP_MSC1) {
+		resource = new_resource(dev, PNP_IDX_MSC1);
+		resource->size = 1;
+		resource->flags |= IORESOURCE_IRQ;
+	}
+}
+
+void pnp_enable_devices(device_t base_dev, struct device_operations *ops,
+			unsigned int functions, struct pnp_info *info)
+{
+	struct device_path path;
+	device_t dev;
+	int i;
+
+	path.type = DEVICE_PATH_PNP;
+	path.pnp.port = base_dev->path.pnp.port;
+
+	/* Setup the ops and resources on the newly allocated devices. */
+	for (i = 0; i < functions; i++) {
+		/* Skip logical devices this Super I/O doesn't have. */
+		if (info[i].function == -1)
+			continue;
+
+		path.pnp.device = info[i].function;
+		dev = alloc_find_dev(base_dev->bus, &path);
+
+		/* Don't initialize a device multiple times. */
+		if (dev->ops)
+			continue;
+
+		if (info[i].ops == 0)
+			dev->ops = ops;
+		else
+			dev->ops = info[i].ops;
+
+		get_resources(dev, &info[i]);
+	}
+}